// html, body {
//   height: 100%;
// }
body {
    min-width: 1200px;
  }
  html,
  body,
  h1,
  h2,
  h3,
  h4,
  h5,
  h6,
  div,
  dl,
  dt,
  dd,
  ul,
  ol,
  li,
  p,
  blockquote,
  pre,
  hr,
  figure,
  table,
  caption,
  th,
  td,
  form,
  fieldset,
  legend,
  input,
  button,
  textarea,
  menu {
    margin: 0;
    padding: 0;
  }
  header,
  footer,
  section,
  article,
  aside,
  nav,
  hgroup,
  address,
  figure,
  figcaption,
  menu,
  details {
    display: block;
  }
  table {
    border-collapse: collapse;
    border-spacing: 0;
  }
  caption,
  th {
    text-align: left;
    font-weight: normal;
  }
  html,
  body,
  fieldset,
  img,
  iframe,
  abbr {
    border: 0;
  }
  i,
  cite,
  em,
  var,
  address,
  dfn {
    font-style: normal;
  }
  [hidefocus],
  summary {
    outline: 0;
  }
  li {
    list-style: none;
  }
  h1,
  h2,
  h3,
  h4,
  h5,
  h6,
  small {
    font-size: 100%;
  }
  sup,
  sub {
    font-size: 83%;
  }
  pre,
  code,
  kbd,
  samp {
    font-family: inherit;
  }
  q:before,
  q:after {
    content: none;
  }
  textarea {
    overflow: auto;
    resize: none;
  }
  label,
  summary {
    cursor: default;
  }
  a,
  button {
    cursor: pointer;
  }
  h1,
  h2,
  h3,
  h4,
  h5,
  h6,
  em,
  strong,
  b {
    font-weight: bold;
  }
  del,
  ins,
  u,
  s,
  a,
  a:hover {
    text-decoration: none;
  }
  body,
  textarea,
  input,
  button,
  select,
  keygen,
  legend {
    font: 12px/1.14 Microsoft YaHei, arial;
    color: #333;
    outline: 0;
  }
  body {
    background: #f5f5f5;
  }
  a,
  a:hover {
    color: #333;
  }
  * {
    box-sizing: border-box;
  }
  
  // less叫css的预编译,浏览器是不认识less
  // 需要做一步编译
  
  // less可以做嵌套
  // 做变量
  // 做混入
  
  // @theme-color: #ff0000;
  // .eles() {
  //   overflow: hidden;
  //   white-space: nowrap;
  //   text-overflow: ellipsis;
  // }
  
  // div {
  //   width: 100px;
  //   height: 100px;
  //   background-color: @theme-color;
  //   .eles();
  
  //   p {
  //     color: @theme-color;
      
  //   }
  // }